CN215548397U

CN215548397U - Rear maintenance tool

Info

Publication number: CN215548397U
Application number: CN202121532211.1U
Authority: CN
Inventors: 张源智; 肖都军; 程毅; 操顺森; 梁晓明
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2022-01-18
Anticipated expiration: 2031-07-06

Abstract

The application discloses a post-maintenance tool, which comprises a clamping hand assembly, a connecting shaft and a screwing part, wherein the clamping hand assembly comprises two clamping hands which are oppositely arranged; the clamping hands are respectively and rotatably arranged on two sides of the connecting shaft; the screwing part is provided with a screwing cavity, one part of the clamping hands and the connecting shaft are positioned in the screwing cavity, the other part of the clamping hands extends out of the screwing part, and the screwing part moves relative to the connecting shaft so that the two clamping hands can approach or separate from each other to clamp or loosen an external component. The maintenance instrument can realize the maintenance operation after the display screen, is simple to operate and improves the maintenance efficiency.

Description

Rear maintenance tool

Technical Field

The application relates to the technical field of display screens, in particular to a rear maintenance tool.

Background

The LED display screen of the existing part is formed by splicing small-distance LED display screens, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, four lamp panels 201 are installed on a single box body 202, the lamp panels 201 are installed on the box body 202 in a magnetic suction mode, and magnetic suction screws 203 are arranged on the back of the lamp panels 201. When the LED display screen needs maintenance, most of the existing LED display screens are maintained before, and the LED display screen is difficult to maintain from the back.

SUMMERY OF THE UTILITY MODEL

The application provides a post-maintenance tool to solve the problem that the current LED display screen is difficult to maintain from the LED display screen back.

In order to solve the above technical problem, the present application provides a rear maintenance tool, which includes: the clamping hand assembly comprises two clamping hands which are oppositely arranged; the clamping hands are respectively and rotatably arranged on two sides of the connecting shaft; and the screwing part is formed with a screwing cavity, one part of the clamping hand and the connecting shaft are positioned in the screwing cavity, the other part of the clamping hand extends out of the screwing part, and the screwing part moves relative to the connecting shaft so that the two clamping hands are close to or far away from each other to clamp or loosen an external component.

Wherein, the back maintenance tool includes the elastic component, and the elastic component sets up between two tong.

Wherein, the one end that the portion was twisted to the connecting axle is kept away from stretches out and twists the portion, and the elastic component wears to establish the connecting axle and is connected between two tong.

Wherein, the screwing part is connected with the connecting shaft in a threaded manner.

The screwing cavity comprises a first end and a second end which are opposite, the first end is provided with a screwing guide cavity, and the diameter distance of the screwing guide cavity is gradually increased from the second end to the first end; the distance between one ends of the two clamping hands close to the connecting shaft is gradually increased along the direction from the second end to the first end.

Wherein, two tong enclose to establish and be formed with tong groove, tong groove transverse section and external component transverse section shape are the same.

Wherein, the one end cover that the tong is close to external part is equipped with the cushion collar to establish external part through cushion collar clamp.

Wherein, one end of the connecting shaft extends out of the screwing part; the rear maintenance tool comprises a magnetic part, and the magnetic part is connected to one end, far away from the screwing part, of the connecting shaft and used for adsorbing an external component.

Wherein, one end of the connecting shaft extends out of the screwing part; one end of the connecting shaft, which is far away from the screwing part, is provided with a positioning part for positioning an external component.

The rear maintenance tool comprises a handheld part, wherein one end of the handheld part penetrates through the screwing cavity and is connected with the connecting shaft, so that the screwing part is located between the connecting shaft and the handheld part.

The beneficial effect of this application is: different from the situation of the prior art, the application provides a rear maintenance tool, which comprises a clamping hand assembly, a connecting shaft and a screwing part, wherein the clamping hand assembly comprises two clamping hands which are oppositely arranged; the clamping hands are respectively and rotatably arranged on two sides of the connecting shaft; the screwing part is provided with a screwing cavity, one part of the clamping hands and the connecting shaft are positioned in the screwing cavity, the other part of the clamping hands extends out of the screwing part, and the screwing part moves relative to the connecting shaft so that the two clamping hands can approach or separate from each other to clamp or loosen an external component. The maintenance instrument can realize the maintenance operation after the display screen, is simple to operate and improves the maintenance efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic front view of a conventional LED display screen;

FIG. 2 is a schematic view of the back of FIG. 1;

FIG. 3 is a schematic view of a back side of the lamp panel shown in FIG. 1;

FIG. 4 is a schematic view of the structure of A shown in FIG. 3;

FIG. 5 is an exploded schematic view of a post-application maintenance tool;

FIG. 6 is a cross-sectional schematic view of the rear maintenance tool of FIG. 5;

FIG. 7 is a schematic view of a first state configuration of a post-application maintenance tool;

FIG. 8 is a structural schematic diagram of a second state of the maintenance tool after application;

FIG. 9 is a schematic structural view of the connecting shaft shown in FIG. 5;

FIG. 10 is a schematic view of the structure of the gripper of FIG. 5;

FIG. 11 is a schematic cross-sectional view of the screw part shown in FIG. 5;

FIG. 12 is a schematic view of a first cross-sectional configuration of a post-maintenance tool applied to an LED display screen according to the present application;

FIG. 13 is an enlarged partial view of FIG. 12;

FIG. 14 is a schematic view of a second side of an LED display screen with a post-maintenance tool of the present application;

FIG. 15 is a schematic view of a third structure of a post-maintenance tool applied to an LED display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

A detailed description of a post-maintenance tool provided by the present invention is provided below with reference to an embodiment.

Referring to fig. 5 and 6, fig. 5 is an exploded view of the post-maintenance tool of the present application; fig. 6 is a cross-sectional schematic view of the rear maintenance tool shown in fig. 5.

In an embodiment, the rear maintenance tool 10 includes a gripper assembly 1, a connecting shaft 2 and a screwing part 3, the gripper assembly 1 includes two grippers 11, the two grippers 11 are oppositely arranged, and the two grippers 11 are used for clamping or releasing with an external component (not shown in the figure). The clamping hand assembly 1 is arranged on the connecting shaft 2, for example, the two clamping hands 11 are respectively rotatably arranged on two sides of the connecting shaft 2, so that the two clamping hands 11 are relatively close to or relatively far away from each other to clamp or loosen an external component. The screw part 3 is formed with a screw cavity 31, one part of the two clamping hands 11 is positioned in the screw cavity 31, and the other part of the two clamping hands 11 extends out of the screw part 3. The connecting shaft 2 is located in the screwing cavity 31, wherein a part of the two clamping hands 11 are rotatably arranged at two sides of the connecting shaft 2.

Referring to fig. 7 and 8, fig. 7 is a structural diagram of a first state of a post-maintenance tool according to the present application; fig. 8 is a second state of the tool after the application. With reference to fig. 5 and 6, when the screwing part 3 moves relative to the connecting shaft 2, one part of the two clamping hands 11 can be pushed to relatively approach, and then the other part of the two clamping hands 11 can be pushed to relatively approach, so as to clamp the external component; or when the screwing part 3 moves reversely relative to the connecting shaft 2, the pushing force of the screwing part 3 on the clamping hands 11 can be released, so that the two clamping hands 11 are far away from each other to loosen the external component. As shown in fig. 7, the two grippers 11 in the rear maintenance tool 10 are in a state of being away from each other; as shown in fig. 8, the two grippers 11 of the rear maintenance tool 10 are in a state of being close to each other.

Referring to fig. 1 to 4, when the post-maintenance tool 10 clamps an external component (e.g., the magnetic attraction screw 203), the lamp panel 201 can be pushed forward relative to the box 202; rotating the direction of the lamp panel 201, and taking out the lamp panel 201 from the hole of the box body 202 for maintenance; then, the lamp panel 201 is installed to the original state by the same method, and the post-maintenance work of the lamp panel 201 is completed. Therefore, the post-maintenance tool 10 can perform post-maintenance operation on the LED display screen, is simple to operate, improves the maintenance efficiency, and can be applied to large-scale meeting places, video monitoring centers and the like.

The number of the gripper assemblies 1 can be one, two or more, and as shown in fig. 5, the gripper assembly 1 is one, that is, the gripper assembly includes two grippers 11. When the gripper assembly 1 is plural, the adjacent gripper assemblies 1 need to avoid mutual interference, and can stably clamp or release the external component. The external member may be a screw, a fixing post, a fixing pin, or the like, and is not limited thereto. The two clamping hands 11 can be respectively connected with the two sides of the connecting shaft 2 in a rotating way through pin shafts 7. Optionally, a pin shaft hole 113 is formed in the clamping arm 11, a pin shaft mounting hole 23 is formed in the connecting shaft 2, and the pin shaft 7 sequentially penetrates through the pin shaft hole 113 and the pin shaft mounting hole 23, so that the pin shaft 7 is connected with the clamping arm 11 and the connecting shaft 2. In addition, the connecting shaft 2 forms a connecting cavity (not shown) for receiving a portion of the two clamping jaws 11, through which the pin 7 passes behind.

In an embodiment, the rear maintenance tool 10 comprises a resilient member 4, the resilient member 4 being arranged between two grippers 11. When the elastic piece 4 is in a natural state, the two clamping hands 11 can be kept in an opening state; when the elastic member 4 is in a compressed state, the elastic member 4 can give a certain pushing force to the two clamping hands 11, so that the two clamping hands 11 can be stably clamped on an external component.

The elastic member 4 may be a spring, for example, two ends of the spring are connected to the two clamping arms 11. Optionally, the opposite sides of the two clamping hands 11 are provided with elastic mounting posts 112, and the spring is fixed on the elastic mounting posts 112, that is, the two ends of the spring are mounted on the clamping hands 11 through the elastic mounting posts 112 on the clamping hands 11. The elastic mounting post 112 may be fixedly connected to the side surface of the clamping arm 11, or may be integrally formed with the clamping arm 11.

Referring to fig. 9 and 10, fig. 9 is a schematic structural view of the connecting shaft shown in fig. 5; fig. 10 is a schematic view of the structure of the gripper shown in fig. 5. In an embodiment, referring to fig. 5 and 6, an end of the connecting shaft 2 away from the screwing portion 3 extends out of the screwing portion 3, and the elastic member 4 is inserted into an end of the connecting shaft 2 extending out of the screwing portion 3 and connected with the two clamping hands 11. Through the mode, not only can the installation of elastic component 4 be realized, but also two tong 11 can be made to be close to each other or keep away from more smoothly. Optionally, the connecting shaft 2 is provided with an elastic through hole 24, the elastic element 4 penetrates through the elastic through hole 24, and two ends of the elastic element 4 are connected with the two corresponding clamping hands 11 through the corresponding elastic mounting posts 112.

Referring to fig. 11, fig. 11 is a schematic cross-sectional view of the screw part shown in fig. 5. Referring to fig. 5 and 6, in an embodiment, the screwing portion 3 moves relative to the connecting shaft 2, for example, by a threaded connection, a lockable sliding connection, a clamping connection, or the like, so that the screwing portion 3 moves relative to the connecting shaft 2. As in the present embodiment, the screw portion 3 is screwed to the connecting shaft 2.

Specifically, the inner surface of the screw part 3 is provided with an internal thread 312, and the outer surface of the connecting shaft 2 is provided with an external thread 22, wherein the internal thread 312 of the screw part 3 is in threaded connection with the external thread 22 of the connecting shaft 2. Therefore, the two clamping hands 11 can be pushed to relatively approach by rotating the screwing part 3 to move towards the clamping hands 11 relative to the connecting shaft 2; by moving the rotary screwing part 3 in the direction away from the gripper 11 relative to the connecting shaft 2, the pushing force on the gripper 11 can be released, so that the two grippers 11 are away from each other.

In an embodiment, referring to fig. 5, 6 and 11, the screw cavity 31 includes a first end and a second end, and the first end and the second end are opposite and are communicated. The first end is arranged near one side of the clamping hand 11, and is formed with a screwing guide cavity 311, and the screwing guide cavity 311 is used for guiding. The screw guide cavity 311 gradually increases in diameter toward the first end at the second end. One part of the two clamping hands 11 is located in the screwing cavity 31, the other part of the two clamping hands 11 extends out of the screwing part 3, in order to facilitate the screwing part 3 to push the two clamping hands 11 to be relatively close to or relatively far away from each other, a part of the clamping hands 11 is formed with an inclined surface, namely, the distance between the two clamping hands 11 close to the connecting shaft 2 is gradually increased along the direction from the second end to the first end, and the inclined surface is arranged in a guiding manner with the screwing guiding cavity 311, so that the two clamping hands 11 are pushed to be mutually close to or mutually far away from each other.

In an embodiment, with reference to fig. 5, 6 and 10, a gripper groove 111 is formed between the two grippers 11, and the shape of the transverse section of the gripper groove 111 is the same as that of the transverse section of the external member. When the two grippers 11 grip the exterior part, the gripper grooves 111 can stably grip the exterior part.

The transverse cross-sectional shape of the grip groove 111 matches the transverse cross-sectional shape of the external member. If the transverse section of the external component is circular, the transverse section of the grip groove 111 is circular; when the external member has an oval cross-sectional shape, the grip groove 111 has an oval cross-sectional shape. Of course, the transverse cross-sectional shapes of the external member and the gripper groove 111 may be other shapes, and are not limited herein.

In this embodiment, when the external component is the magnetic attraction screw 203, the cross-sectional shape of the magnetic attraction screw 203 is circular, and in order to enable the two grippers 11 to completely clamp the magnetic attraction screw 203, the transverse cross-section of the gripper slot 111 needs to be circular. Namely, a semicircular arc groove is formed on one gripper 11, the other semicircular arc groove is formed on the other gripper 11, and the two semicircular arc grooves are surrounded to form a circular gripper groove 111.

In an embodiment, referring to fig. 5 and fig. 6, a buffer sleeve 5 is sleeved on one end of each gripper 11 close to the external component, and the buffer sleeve 5 can increase friction force and ensure that the two grippers 11 clamp the magnetic attraction screw 203. The shape of the cushion collar 5 is the same as the shape of the gripper 11 to match the shape of the gripper 11. Optionally, the cushion sleeve 5 may be a rubber sleeve, and the rubber sleeve may be made of a rubber material.

In an embodiment, with reference to fig. 5 and 6, one end of the connecting shaft 2 extends out of the screw portion 3 for mounting a magnetic member 6 mentioned later. The rear maintenance tool 10 includes a magnetic member 6, the magnetic member 6 has magnetism, the magnetic member 6 is mounted on an end of the connecting shaft 2 away from the screw part 3, and the magnetic member 6 can attract the magnetic attraction screw 203. Before the clamping hand assembly 1 in the rear maintenance tool 10 clamps the external component, the magnetic part 6 is adsorbed on the magnetic attraction screw 203, so that the rear maintenance tool 10 cannot move around in the process of clamping the magnetic attraction screw 203, and a coarse positioning effect is achieved. The magnetic member 6 may be a magnet, and the magnet is disposed at one end of the connecting shaft 2 extending out of the screwing portion 3.

In an embodiment, in conjunction with fig. 5 and 6, one end of the connecting shaft 2 extends out of the screwing portion 3 for mounting a positioning portion 21 mentioned later. One end of the connecting shaft 2 far away from the screwing part 3 is provided with a positioning part 21, and the positioning part 21 is positioned with an external component so as to realize a coarse positioning effect. The positioning portion 21 may have a shape corresponding to that of an external component (e.g., the magnetic screw 203 has a cross-shaped groove) to achieve positioning. As in the present embodiment, the positioning portion 21 has a cross-shaped groove shape, but the positioning portion 21 may have other shapes, and is not limited thereto.

In the above embodiment, only the magnetic member 6 may be disposed on the connecting shaft 2 for coarse positioning, or only the positioning portion 21 may be disposed on the connecting shaft for coarse positioning, or both the magnetic member 6 and the positioning portion 21 may be disposed for coarse positioning, where the specific disposition may be determined according to actual circumstances, and is not limited herein.

In one embodiment, in conjunction with fig. 5 and 6, the rear maintenance tool 10 includes a hand grip 8, the hand grip 8 being used for hand gripping or limiting purposes. Wherein, handheld portion 8 one end is worn to establish and is twisted chamber 31 soon, and handheld portion 8 is close to the one end of connecting axle 2 and is connected with connecting axle 2, twists the portion 3 and is located between connecting axle 2 and handheld portion 8 soon. Optionally, the handheld portion 8 is connected to the connecting shaft 2 through a thread, if the handheld portion 8 is provided with an external thread (not shown in the figure) near the periphery of one end of the screwing portion, the connecting shaft 2 is provided with an internal thread (not shown in the figure) far away from the inner side face of one end of the clamping handle 11, and the external thread of the handheld portion 8 is connected with the internal thread in the connecting shaft 2 through a thread, so that the mounting is facilitated.

During the use of the rear maintenance tool 10, one hand is used for holding the hand-held part 8, the other hand rotates the screwing part 3, and the two clamping hands 11 synchronously approach to move towards the center direction during the screwing process until the external part is clamped. Above-mentioned handheld portion 8 can rings screw 81, and the maintainer passes rings screw 81's hole with the finger, and the handheld or limiting displacement of being convenient for.

Referring to fig. 12, 13, 14 and 15, fig. 12 is a schematic view of a first cross-sectional structure of a post-maintenance tool applied to an LED display screen according to the present application; FIG. 13 is an enlarged partial view of FIG. 12; FIG. 14 is a schematic view of a second side of an LED display screen with a post-maintenance tool of the present application; FIG. 15 is a schematic view of a third structure of a post-maintenance tool applied to an LED display screen.

The above-described post-maintenance tool 10 can be applied to the technical field where the clamping of the foreign object is required. For example, when the rear maintenance tool 10 is applied to the technical field of display screens, wherein the LED display screens may be formed by splicing the entire screens, the rear maintenance tool 10 is used: firstly, aligning a positioning part 21 (such as a cross rib) on the post-maintenance tool 10 to a cross groove on a magnetic suction screw 203 on a lamp panel 201 to play a role in rotation stopping, and preventing the post-maintenance tool 10 from rotating after being clamped; meanwhile, the magnetic part 6 (such as a magnet) adsorbs the magnetic suction screw 203, so that the tool 10 cannot move around in the clamping process after the maintenance, and a coarse positioning effect is achieved; then, the rotating and screwing part 3 moves relative to the connecting shaft 2, so that the two clamping hands 11 completely clamp the magnetic suction screws 203 on the lamp panel 201; thirdly, after the rear maintenance tool 10 is completely clamped, the lamp panel 201 is pushed forward; then, rotating the direction of the lamp panel 201, and taking out the lamp panel 201 from the hole of the box 202 backwards for maintenance; finally, the lamp panel 201 is installed to the original state by the same method, and the post-maintenance work of the display screen is completed.

Compared with the prior art, the post-maintenance tool comprises a clamping hand assembly, a connecting shaft and a screwing part, wherein the clamping hand assembly comprises two clamping hands which are oppositely arranged; the clamping hands are respectively and rotatably arranged on two sides of the connecting shaft; the screwing part is provided with a screwing cavity, one part of the clamping hands and the connecting shaft are positioned in the screwing cavity, the other part of the clamping hands extends out of the screwing part, and the screwing part moves relative to the connecting shaft so that the two clamping hands can approach or separate from each other to clamp or loosen an external component. The maintenance instrument can realize the maintenance operation after the display screen, is simple to operate and improves the maintenance efficiency.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A post-maintenance tool, characterized in that the post-maintenance tool comprises:

the clamping hand assembly comprises two clamping hands which are oppositely arranged;

the clamping hands are respectively and rotatably arranged on two sides of the connecting shaft;

and the screwing part is formed with a screwing cavity, one part of the clamping hand and the connecting shaft are positioned in the screwing cavity, the other part of the clamping hand extends out of the screwing part, and the screwing part moves relative to the connecting shaft so that the two clamping hands are close to or far away from each other to clamp or loosen an external component.

2. The rear maintenance tool according to claim 1, characterized in that the rear maintenance tool comprises a resilient member, which is arranged between the two grippers.

3. The rear maintenance tool according to claim 2, wherein one end of the connecting shaft, which is far away from the screwing part, extends out of the screwing part, and the elastic element penetrates through the connecting shaft and is connected between the two clamping hands.

4. The post-maintenance tool according to claim 1, wherein the screw portion is screwed to the connecting shaft.

5. The post-maintenance tool of claim 1, wherein the screw cavity includes first and second opposing ends, the first end defining a screw pilot cavity, the screw pilot cavity increasing in diameter along the second end toward the first end;

the distance between the two clamping hands close to one end of the connecting shaft is gradually increased along the direction from the second end to the first end.

6. The post-maintenance tool according to claim 1, wherein the two gripper enclosures are formed with gripper grooves having a transverse cross-section identical to a transverse cross-section of the exterior member.

7. The post-maintenance tool according to claim 1, wherein a buffer sleeve is sleeved on one end of the clamping hand close to the external component, so that the external component is clamped through the buffer sleeve.

8. The rear maintenance tool according to any one of claims 1 to 7, wherein one end of the connecting shaft protrudes from the screw portion; the rear maintenance tool comprises a magnetic part, and the magnetic part is connected to one end, far away from the screwing part, of the connecting shaft and used for adsorbing the external part.

9. The rear maintenance tool according to any one of claims 1 to 7, wherein one end of the connecting shaft protrudes from the screw portion; and one end of the connecting shaft, which is far away from the screwing part, is provided with a positioning part for positioning the external part.

10. The rear maintenance tool according to any one of claims 1 to 7, wherein the rear maintenance tool comprises a hand-held portion, and one end of the hand-held portion penetrates through the screwing cavity and is connected with the connecting shaft, so that the screwing portion is located between the connecting shaft and the hand-held portion.